/* =============================================================
 * Your Grandmother's guide to Algorithms
 * =============================================================
 *
 * Copyright (c) 2007, Saverio Miroddi
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 * 
 *     * Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright 
 *       notice, this list of conditions and the following disclaimer in the 
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the SaverioMiroddiSoftware nor the names of its 
 *       contributors may be used to endorse or promote products derived from 
 *       this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *  
 * ---------------------------
 * Table.java
 * ---------------------------
 *
 */
package dbobjects.tables;

import java.util.ArrayList;
import java.util.List;

/**
 * @author Saverio Miroddi
 */
public class Table {
	protected List<String[]> rows;
	protected int totCols;
	private int currPos;
	
	public Table(int totCols) {
		rows = new ArrayList<String[]>();
		this.totCols = totCols;
		beforeFirst();
	}
	
	public Table(int totCols, String[]... rows) {
		this(totCols);
		for (String[] row: rows) insertRow(row); // unopt
	}
	
	/**
	 * Get the size (number of records).
	 * 
	 * @return number of records.
	 */
	public int size() {
		return rows.size();
	}

	public void insertRow(String[] newRow) {
		rows.add(newRow);
	}
	
	public void beforeFirst() {
		currPos = -1;
	}
	
	public boolean next() {
		currPos++;
		return currPos < rows.size();
	}
	
	public String[] getRow() {
		return rows.get(currPos);
	}
	
	public String[] getNullRow() {
		return new String[totCols];
	}
	
	public int getRowReference() {
		return currPos;
	}

	public void setRowPosition(int rowReference) {
		currPos = rowReference;
	}
}